27705250685 has 8 divisors (see below), whose sum is σ = 37995772416. Its totient is φ = 18997886160.

The previous prime is 27705250679. The next prime is 27705250733. The reversal of 27705250685 is 58605250772.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27705250685 - 2¹² = 27705246589 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395789261 + ... + 395789330.

It is an arithmetic number, because the mean of its divisors is an integer number (4749471552).

Almost surely, 2^27705250685 is an apocalyptic number.

It is an amenable number.

27705250685 is a deficient number, since it is larger than the sum of its proper divisors (10290521731).

27705250685 is an equidigital number, since it uses as much as digits as its factorization.

27705250685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791578603.

The product of its (nonzero) digits is 1176000, while the sum is 47.

The spelling of 27705250685 in words is "twenty-seven billion, seven hundred five million, two hundred fifty thousand, six hundred eighty-five".